use current intllib API

depends.txt

@@ -1 +1,2 @@
 default
+intllib?

init.lua

@@ -5,12 +5,12 @@ autoclose_doors = {}
 
 -- Boilerplate to support localized strings if intllib mod is installed.
 local S
-if autoclose_doors.intllib_modpath then
-    dofile(autoclose_doors.intllib_modpath.."/intllib.lua")
-    S = intllib.Getter(minetest.get_current_modname())
+if minetest.get_modpath("intllib") then
+	S = intllib.Getter()
 else
-    S = function ( s ) return s end
+	S = function(s) return s end
 end
+
 autoclose_doors.gettext = S
 
 --